Stoker for furnaces



Q QILUNGWORT&

STOKER FOR FURNACES.

APPLICATION FILED Arn.22. 1919f 1,392,063. PatentedSept. 27,1921.

INVENTOR ATTORNEY UNITED STATES,

PATENT OFFICE.-

enonon o; ILLINGWORTH, or CINCINNATIQOHIO.

STOKER r012. summons.

To all whom it may concern:

Be it known that I, GEORGE C. ILLING- WORTH, a citizen of the United States, residing at the city of Cincinnati, in the county of Hamilton and State ofOhio, have invented certain new and useful" Improvements in Stokersfor Furnaces, of which the following isa specification; 3 The object of my invention is to provide a simple and highly efficient manually operated stoker that will facilitate the process of combustionin the manner of first feeding the green coal from a hopper, pushing iton to a coking plate, allowing the coal to coke in this primary combustion and to feed it after it has coked on to a series'of grate bars for complete oxidation andthe deposit of clinker or refuse at the bottom of the fur-' nace on dump plates or bars so that it can be discharged into ash pit. The object of my invention is to make the process of feeding coal and the process of moving the fuel bed down the grate by rocking the grates simultaneous by connecting the grates through links to the ram.

It is so constructed and arranged that the ram for pushing coal on to the coking plate, and the grate bar shaker connecting rod may be either operated singly or they may be operated simultaneously if desired and this .feature constitutes one of the main and salient objects of my invention.

The various features andadvantages of the invention will readily become apparent from a perusal .of the following specification and claims.

The accompanying drawing, forming part of this specification, is a longitudinal sectional view of a .furnace construction with my invention therein and connected thereto and in position. V I In the drawing, I show my invention applied to a furnace, in which 1 represents the front plate thereof, 2 represents the line. of theboiler, 3 the brid e walland 4f the bottom of the ash pit. K

' rocking bars 20, as illustrated.

series of arches'as 5 are present in the construction herein shown. All these parts may be of any other form or contour, as my invention is not confined to any particular or specific formj' of fur- Specificiati on of Letters Patent. Patented Sptf, 1921.- Application filed-April 22, 19 19. serial No. 291,98 i v i of the front are" point an airspace 9 is present Theifront plate 1 is provided with an opening 10, through which the coal is fed.

The front plate is provided below the line of boiler with an air inlet 12 to allow for the passage of air as indicated by the arrows. This-air flows down into the furnace' under the coking arches and over the cokin coal tosupport the combustion of volatile gases rising from the coal. The air passage over the arches is sealed to prevent the flowing'of the air at a point in thefuel bed where it is not needed. 7 t

In the furnace, at each side, I provide a grate frame 11 having its rear end supported on a step 13 in the bridge wall 3, and its forward end supported by a bracket 14, as shown at 15L -I may support this grate frame in any manner. v

In furthercarrying out my invention, I provide a series of grate bars, some, marked 20, provided with extensions 17, connectedv to the shaker barlS by which they maybe rocked or shaken; those marked 19 are rigid and stationary and are placed between the The rocking bars 20are all pivoted at 21 tothe shaker bar 18. The forward end of the shaker bar 18 is pivotally connected at22, to a forwardly extending link 28, which extends out through the front plate, 1.

In the rear of the grate, I provide dump bars or plates- 24 which receive the refuse and which are pivotally connected at 25 to link 26, which in turn is pivotally connected at 28 to a forwardly extending link 27.

that extends through the front plate 1.

All the rocking grate bars and dump bars;

are pivotally supported in the side frames 11.

'A link t9 has its rear end pivoted, at 29,

to the shaker bar 18 and has its other end pivoted at 30 to the lever 31, the link 49 extending through the front plate 1 to meet A hopper for the furnace and Stoker isprovided and consists of side plates 39 and a bottom 40.

Directly below the hopper, Iprovid'e the feeding ram 41 which is capable of'reciproeating under the mouth of the hopper at the opening 10 in theplate 1, and therram is indicated in its forward position at 50.

This ram 41 is operated through the medium of a lever 42 fulcrumed at 43, to a frame 44 mounted on front plate 1. A link 45 connects the lever to the ram 41:.

The lever 42 carries a pin or stud 46 adapted to be engaged by a hook 47 on link 23 so that if desired, the hook can be connected to the pin or stud to permit the lever 42 to be used for simultaneously -ioeking the grate bars 20 and reciprocating the ram 41. By disconnecting the hook 47 from. the

stud 46, the ram 41 may be operated independently of the grate bars, or both ram 41 and rocking grates 20 may be operated simultaneously from the lever 31 when the link 23 is connected to the lever 42.

'When the link 23 is not operatively en gaged with the lever 42, it is held and supported by the hanger 48.

The coal to be consumed is thrown into the hopper, slides down the inclined bottom 40 by gravitation on to the coking plate 37 The gases as they are distilled from the green coal pass up and are consumed in the furnace by air admitted through opening 12. The coal moves down the grate bars 19 and 20 until it is deposited on the dumpbars24. This downward movement is facil tated by moving the grate bars in the manner indicated. The ram pushes the coal along the coking plate 37 and this is done whenever necessary to keep the coal properly stoked, the main fuel bed being moved, agitated, and broken up by the rocking of the grates.

- By this operation, the coal is first coked and the coke produced is forced down the grate bars. coal has been consumed, the residue passes onto the dump bars 24 where, through the operation of lever 34, link 27, and link 26,

the ashes are precipitated on the bottom 4 of the ash pit. During this operation,

through the medium of the shaking lever 31,

link 49, and shaker bar 18, rocking grate When the combustible matter in the bars 20 are moved or shaken so that the heated products thereon are forced to move downward. The air supply for the grates is received through the openings closed by the ash pit doors 52.

If it is desired to ram the coal along the coking plate 37 and to agitate the grate bars 20 simultaneously, the hook 47 on link 23 is hooked over the pin or stud 46 on to lever 42 so that when either lever 42 or 31 is operated, the operation will ram the coal along the coking plate and also agitate the grate bars 20'. r

While I have described one specific form of carrying my invention into effect, it will be understood that the same is capable of modification andchange without departing from the spirit and principle of the invem tion, and I wish to be understood as claiming that such modifications will still fall within the scope of my invention.

1 lVhat'I claim as new and: my invention and desire to secure by Letters Patent, is:

1. In a furnace'stoking device, a series of grate bars capable of agitation; means for agitating the grate bars, a coking plate, a-

ram, means: capable of actuation independent. of the means for agitating thegrate bars, for operating said ram, to feed fuel along the coking plate, and means detach.- ably connecting the ram operating -means directly with the grate bars, in order to per mit the grate bar agitating means to 1mpart movement to the ram opera-ting. means or to permit the ram operating means to actuate the ram independently or jointly with the grate bars. I

2. A furnace stoking device of the kind defined by claim 1 having dumping bars located at the lower extremity of the grate 1liars, and means for agitating said dump ars.

'3. In a furnace stoking device, a series of grate bars capable of agitation, means for agitating the grate bars, a coking plate and a hearth plate at thehead ofsaid grate bars and in alinement therewith, a ram, means capable of actuation independently of the means for agitating the grate bars, for operating said ram to, feed fuel along the coking plate and means detachably connectingthe ram operating means directly with the gratebars so'that said grate bar agitat-V ing means may impart movement to the ram, said connecting means when disconnected permitting said ram operatigsmeans aud the grate bar operating means to be independently operated.

4. A stoking. apparatus for furnaces including a coking plate, a grate and dump bars all mounted in inclined ali-nemcnt, said coking plate beingarranged above the grate bars andthe dump bars being arranged below the grate bars, a front plate for thefurnace having a fuel feeding opening through 10 vided with a hook designed to detach p which fuel is fed onto the coking plate, a fuel hopper located on the exterior of the Y the coking plate, a lever mounted on the exterior of the furnace and connected to said ram, means for rocking the grate bars Eroaly engage said lever whereby manipulation of said lever will simultaneously operate the ram and grate bars, and means for rocking the grate bars independently of the ram operatlng lever.

In testimony whereof I aflix my signature at Cincinnati, Ohio, this 10th day of April, 1919.

GEORGE 0.1LLINGW0RTH. 

